cmd/asm: fix SIMD register name on arm64
cmd/asm: fix SIMD register name on arm64

Current V-register range is V32~V63 on arm64. This patch changes it to
V0~V31.

fix #15465.

Change-Id: I90dab42dea46825ec5d7a8321ec4f6550735feb8
Reviewed-on: https://go-review.googlesource.com/22520
Reviewed-by: Aram Hăvărneanu <947f6c13826812af1df6a3fba06092a9b6c6b082@mgk.ro>
Run-TryBot: Aram Hăvărneanu <947f6c13826812af1df6a3fba06092a9b6c6b082@mgk.ro>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

ganboing/go-esx,nawawi/go,theif519/go,CAFxX/go,ImJasonH/go,suncycheng/go,golang/go,codestation/go,derekmarcotte/go,josharian/go,vsekhar/elastic-go,josharian/go,josharian/go,suncycheng/go,derekmarcotte/go,vsekhar/elastic-go,cloudflare/go,codestation/go,cloudflare/go,theif519/go,vsekhar/elastic-go,golang/go,goodlang/good,ganboing/go-esx,theif519/go,derekmarcotte/go,momchil-velikov/go,codestation/go,Cofyc/go,polyverse-security/go,cloudflare/go,linux-on-ibm-z/go,codestation/go,codestation/go,Cofyc/go,linux-on-ibm-z/go,codestation/go,josharian/go,derekmarcotte/go,linux-on-ibm-z/go,vsekhar/elastic-go,Cofyc/go,cloudflare/go,Cofyc/go,ImJasonH/go,goodlang/good,linux-on-ibm-z/go,suncycheng/go,4ad/go,momchil-velikov/go,akutz/go,CAFxX/go,suncycheng/go,vsekhar/elastic-go,josharian/go,linux-on-ibm-z/go,akutz/go,polyverse-security/go,golang/go,nawawi/go,akutz/go,CAFxX/go,CAFxX/go,ImJasonH/go,Cofyc/go,4ad/go,ImJasonH/go,josharian/go,goodlang/good,golang/go,polyverse-security/go,suncycheng/go,theif519/go,nawawi/go,nawawi/go,cloudflare/go,Cofyc/go,ImJasonH/go,momchil-velikov/go,4ad/go,polyverse-security/go,ImJasonH/go,4ad/go,josharian/go,ganboing/go-esx,suncycheng/go,derekmarcotte/go,golang/go,CAFxX/go,ImJasonH/go,4ad/go,codestation/go,4ad/go,linux-on-ibm-z/go,4ad/go,akutz/go,linux-on-ibm-z/go,linux-on-ibm-z/go,goodlang/good,cloudflare/go,polyverse-security/go,ganboing/go-esx,goodlang/good,ganboing/go-esx,CAFxX/go,CAFxX/go,golang/go,nawawi/go,polyverse-security/go,theif519/go,derekmarcotte/go,derekmarcotte/go,CAFxX/go,akutz/go,ImJasonH/go,christopher-henderson/Go,polyverse-security/go,theif519/go,ganboing/go-esx,4ad/go,golang/go,derekmarcotte/go,nawawi/go,Cofyc/go,vsekhar/elastic-go,theif519/go,momchil-velikov/go,nawawi/go,nawawi/go,akutz/go,goodlang/good,cloudflare/go,goodlang/good,vsekhar/elastic-go,momchil-velikov/go,akutz/go,josharian/go,momchil-velikov/go,Cofyc/go,suncycheng/go,theif519/go,ganboing/go-esx,cloudflare/go,golang/go,momchil-velikov/go,suncycheng/go,goodlang/good,ganboing/go-esx,polyverse-security/go,vsekhar/elastic-go,codestation/go,akutz/go,momchil-velikov/go